Merge branch 'fix-labels' into 'master'

Update label styling

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/118371



Merged-by: Vitaly Slobodin <vslobodin@gitlab.com>
Approved-by: Alex Pennells <apennells@gitlab.com>
Approved-by: Gina Doyle <gdoyle@gitlab.com>
Approved-by: Vitaly Slobodin <vslobodin@gitlab.com>
Co-authored-by: Annabel Dunstone Gray <annabel.dunstone@gmail.com>